package cn.xuqiudong.common.util.poi.export;

import cn.xuqiudong.common.util.encrypt.Encodes;
import cn.xuqiudong.common.util.reflect.ReflectionUtils;
import jakarta.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.commons.lang3.math.NumberUtils;
import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.Comment;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFRichTextString;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * 导出Excel文件（导出“XLSX”格式，支持大数据量导出 @see org.apache.poi.ss.SpreadsheetVersion）
 *
 * @author
 * @version 使用方法： 1.单sheet：new ExportExcel(title, Test.class).setDataList(list).write(response, fileName).dispose();
 * @ExcelField(title="姓名", align=1, sort=3, width = "6000") public String getName() { return name;}
 * 2.多sheet：ExportExcel.exportExcelForMoreSheet(titleList, dataList).writeFile(response,
 * fileName).dispose()
 */
@SuppressWarnings("PMD")
public class ExportExcel {

    private static Logger log = LoggerFactory.getLogger(ExportExcel.class);

    /**
     * 工作薄对象
     */
    private SXSSFWorkbook wb;

    /**
     * 工作表对象
     */
    private SXSSFSheet sheet;

    /**
     * 样式列表
     */
    private Map<String, CellStyle> styles;

    /**
     * 当前行号
     */
    private int rownum;

    /**
     * 注解列表（Object[]{ ExcelField, Field/Method }）
     */
    List<Object[]> annotationList = new ArrayList<>();

    /**
     * 构造函数
     *
     * @param title 表格标题，传“空值”，表示无标题
     * @param cls   实体对象，通过annotation.ExportField获取标题
     */
    public ExportExcel(String title, Class<?> cls) {
        this(title, cls, 1);
    }

    /**
     * 导出函数，多sheet页导出
     */
    public static ExportExcel exportExcelForMoreSheet(List<String> title, List<List<?>> dataList) {
        ExportExcel ss = null;
        int i = 0;
        for (List<?> list : dataList) {
            if (list.size() > 0) {
                Class<?> cls = list.get(0).getClass();
                if (i == 0) {
                    ss = new ExportExcel(title.get(i), cls, 1);
                    List<ExcelHeader> headerList = ss.getHeaderList(cls, 1);
                    ss.setDataListForMoreSheet(title.get(i), list, false, headerList);
                } else {
                    List<ExcelHeader> headerList = ss.getHeaderList(cls, 1);
                    ss.setDataListForMoreSheet(title.get(i), list, true, headerList);
                }
            }
            i++;
        }
        return ss;
    }

    /**
     * 构造函数
     *
     * @param title  表格标题，传“空值”，表示无标题
     * @param cls    实体对象，通过annotation.ExportField获取标题
     * @param type   导出类型（1:导出数据；2：导出模板）
     * @param groups 导入分组
     */
    public ExportExcel(String title, Class<?> cls, int type, int... groups) {
        // Get annotation field 包含父类的

        for (; cls != Object.class; cls = cls.getSuperclass()) {

            Field[] fs = cls.getDeclaredFields();
            for (Field f : fs) {
                ExcelField ef = f.getAnnotation(ExcelField.class);
                if (ef != null && (ef.type() == 0 || ef.type() == type)) {
                    if (groups != null && groups.length > 0) {
                        boolean inGroup = false;
                        for (int g : groups) {
                            if (inGroup) {
                                break;
                            }
                            for (int efg : ef.groups()) {
                                if (g == efg) {
                                    inGroup = true;
                                    annotationList.add(new Object[]{ef, f});
                                    break;
                                }
                            }
                        }
                    } else {
                        annotationList.add(new Object[]{ef, f});
                    }
                }
            }
            // Get annotation method
            Method[] ms = cls.getMethods();
            for (Method m : ms) {
                ExcelField ef = m.getAnnotation(ExcelField.class);
                if (ef != null && (ef.type() == 0 || ef.type() == type)) {
                    if (groups != null && groups.length > 0) {
                        boolean inGroup = false;
                        for (int g : groups) {
                            if (inGroup) {
                                break;
                            }
                            for (int efg : ef.groups()) {
                                if (g == efg) {
                                    inGroup = true;
                                    annotationList.add(new Object[]{ef, m});
                                    break;
                                }
                            }
                        }
                    } else {
                        annotationList.add(new Object[]{ef, m});
                    }
                }
            }
        }

        // Field sorting
        Collections.sort(annotationList, new Comparator<Object[]>() {
            @Override
            public int compare(Object[] o1, Object[] o2) {
                return compareSort(o1, o2);
            }

            ;
        });
        // Initialize
        List<ExcelHeader> headerList = new ArrayList<>();
        for (Object[] os : annotationList) {
            String t = ((ExcelField) os[0]).title();
            String width = ((ExcelField) os[0]).width();
            // 如果是导出，则去掉注释
            if (type == 1) {
                String[] ss = StringUtils.split(t, "**", 2);
                if (ss.length == 2) {
                    t = ss[0];
                }
            }
            ExcelHeader header = new ExcelHeader.Builder().name(t).width(width).bulid();
            headerList.add(header);
        }
        initialize(title, headerList);
    }

    public List<ExcelHeader> getHeaderList(Class<?> cls, int type, int... groups) {
        annotationList.clear();
        // Get annotation field
        Field[] fs = cls.getFields();
        for (Field f : fs) {
            ExcelField ef = f.getAnnotation(ExcelField.class);
            if (ef != null && (ef.type() == 0 || ef.type() == type)) {
                if (groups != null && groups.length > 0) {
                    boolean inGroup = false;
                    for (int g : groups) {
                        if (inGroup) {
                            break;
                        }
                        for (int efg : ef.groups()) {
                            if (g == efg) {
                                inGroup = true;
                                annotationList.add(new Object[]{ef, f});
                                break;
                            }
                        }
                    }
                } else {
                    annotationList.add(new Object[]{ef, f});
                }
            }
        }
        // Get annotation method
        Method[] ms = cls.getMethods();
        for (Method m : ms) {
            ExcelField ef = m.getAnnotation(ExcelField.class);
            if (ef != null && (ef.type() == 0 || ef.type() == type)) {
                if (groups != null && groups.length > 0) {
                    boolean inGroup = false;
                    for (int g : groups) {
                        if (inGroup) {
                            break;
                        }
                        for (int efg : ef.groups()) {
                            if (g == efg) {
                                inGroup = true;
                                annotationList.add(new Object[]{ef, m});
                                break;
                            }
                        }
                    }
                } else {
                    annotationList.add(new Object[]{ef, m});
                }
            }
        }
        // Field sorting
        Collections.sort(annotationList, new Comparator<Object[]>() {
            @Override
            public int compare(Object[] o1, Object[] o2) {
                return compareSort(o1, o2);
            }

            ;
        });
        // Initialize
        List<ExcelHeader> headerList = new ArrayList<>();
        for (Object[] os : annotationList) {
            String t = ((ExcelField) os[0]).title();
            String width = ((ExcelField) os[0]).width();
            // 如果是导出，则去掉注释
            if (type == 1) {
                String[] ss = StringUtils.split(t, "**", 2);
                if (ss.length == 2) {
                    t = ss[0];
                }
            }
            ExcelHeader header = new ExcelHeader.Builder().name(t).width(width).bulid();
            headerList.add(header);
        }
        return headerList;
    }

    /**
     * 构造函数
     *
     * @param title   表格标题，传“空值”，表示无标题
     * @param headers 表头数组
     */
    public ExportExcel(String title, String[] headers) {
        List<ExcelHeader> excelHeaderList = new ArrayList<ExcelHeader>();
        for (String headerName : headers) {
            ExcelHeader excelHeader = new ExcelHeader.Builder().name(headerName).width("").bulid();
            ;
            excelHeaderList.add(excelHeader);
        }
        initialize(title, excelHeaderList);
    }

    /**
     * 构造函数
     *
     * @param title      表格标题，传“空值”，表示无标题
     * @param headerList 表头列表
     */
    public ExportExcel(String title, List<ExcelHeader> headerList) {
        initialize(title, headerList);
    }

    /**
     * 初始化函数
     *
     * @param title      表格标题，传“空值”，表示无标题
     * @param headerList 表头列表
     */
    private void initializeForMoreSheet(String title, List<ExcelHeader> headerList, boolean isnew) {
        if (isnew) {
            this.wb = new SXSSFWorkbook(500);
        }
        this.sheet = wb.createSheet(title);
        this.styles = createStyles(wb);
        // Create title
        if (StringUtils.isNotBlank(title)) {
            Row titleRow = sheet.createRow(rownum++);
            titleRow.setHeightInPoints(30);
            Cell titleCell = titleRow.createCell(0);
            titleCell.setCellStyle(styles.get("title"));
            titleCell.setCellValue(title);
            sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(),
                    headerList.size() - 1));
        }
        // Create header
        if (headerList == null) {
            throw new RuntimeException("headerList not null!");
        }
        Row headerRow = sheet.createRow(rownum++);
        headerRow.setHeightInPoints(16);
        sheet.trackAllColumnsForAutoSizing();
        for (int i = 0; i < headerList.size(); i++) {
            Cell cell = headerRow.createCell(i);
            cell.setCellStyle(styles.get("header"));
            String[] ss = StringUtils.split(headerList.get(i).getName(), "**", 2);
            if (ss.length == 2) {
                cell.setCellValue(ss[0]);
                Comment comment = this.sheet.createDrawingPatriarch()
                        .createCellComment(new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 3, (short) 5, 6));
                comment.setString(new XSSFRichTextString(ss[1]));
                cell.setCellComment(comment);
            } else {
                cell.setCellValue(headerList.get(i).getName());
            }
            sheet.autoSizeColumn(i);
        }
        for (int i = 0; i < headerList.size(); i++) {
            int colWidth = sheet.getColumnWidth(i) * 2;
            if (StringUtils.isEmpty(headerList.get(i).getWidth())) {
                sheet.setColumnWidth(i, colWidth < 3000 ? 3000 : colWidth);
            } else {
                sheet.setColumnWidth(i, Integer.parseInt(headerList.get(i).getWidth()));
            }
        }
        log.debug("Initialize success.");
    }

    /**
     * 初始化函数
     *
     * @param title      表格标题，传“空值”，表示无标题
     * @param headerList 表头列表
     */
    private void initialize(String title, List<ExcelHeader> headerList) {
        this.wb = new SXSSFWorkbook(500);
        this.sheet = wb.createSheet(title);
        this.styles = createStyles(wb);
        // Create title
        if (StringUtils.isNotBlank(title)) {
            Row titleRow = sheet.createRow(rownum++);
            titleRow.setHeightInPoints(30);
            Cell titleCell = titleRow.createCell(0);
            titleCell.setCellStyle(styles.get("title"));
            titleCell.setCellValue(title);
            sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(),
                    headerList.size() - 1));
        }
        // Create header
        if (headerList == null) {
            throw new RuntimeException("headerList not null!");
        }
        Row headerRow = sheet.createRow(rownum++);
        headerRow.setHeightInPoints(16);
        sheet.trackAllColumnsForAutoSizing();
        for (int i = 0; i < headerList.size(); i++) {
            Cell cell = headerRow.createCell(i);
            cell.setCellStyle(styles.get("header"));
            String[] ss = StringUtils.split(headerList.get(i).getName(), "**", 2);
            if (ss.length == 2) {
                cell.setCellValue(ss[0]);
                Comment comment = this.sheet.createDrawingPatriarch()
                        .createCellComment(new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 3, (short) 5, 6));
                comment.setString(new XSSFRichTextString(ss[1]));
                cell.setCellComment(comment);
            } else {
                cell.setCellValue(headerList.get(i).getName());
            }
            sheet.autoSizeColumn(i);
        }
        for (int i = 0; i < headerList.size(); i++) {
            int colWidth = sheet.getColumnWidth(i) * 2;
            if (StringUtils.isEmpty(headerList.get(i).getWidth())) {
                sheet.setColumnWidth(i, colWidth < 3000 ? 3000 : colWidth);
            } else {
                int width = Integer.parseInt(headerList.get(i).getWidth());
                sheet.setColumnWidth(i, width);
            }
        }
        log.debug("Initialize success.");
    }

    /**
     * 创建表格样式
     *
     * @param wb 工作薄对象
     * @return 样式列表
     */
    private Map<String, CellStyle> createStyles(Workbook wb) {
        Map<String, CellStyle> styles = new HashMap<String, CellStyle>();

        CellStyle style = wb.createCellStyle();
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        Font titleFont = wb.createFont();
        titleFont.setFontName("Arial");
        titleFont.setFontHeightInPoints((short) 16);
        titleFont.setBold(true);
        style.setFont(titleFont);
        styles.put("title", style);

        style = wb.createCellStyle();
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        style.setBorderRight(BorderStyle.HAIR);
        style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderLeft(BorderStyle.HAIR);
        style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderTop(BorderStyle.HAIR);
        style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderBottom(BorderStyle.HAIR);
        style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        Font dataFont = wb.createFont();
        dataFont.setFontName("Arial");
        dataFont.setFontHeightInPoints((short) 10);
        style.setFont(dataFont);
        styles.put("data", style);

        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.LEFT);
        styles.put("data1", style);

        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.CENTER);
        styles.put("data2", style);

        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.RIGHT);
        styles.put("data3", style);

        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        // style.setWrapText(true);
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        Font headerFont = wb.createFont();
        headerFont.setFontName("Arial");
        headerFont.setFontHeightInPoints((short) 10);
        headerFont.setBold(true);
        headerFont.setColor(IndexedColors.WHITE.getIndex());
        style.setFont(headerFont);
        styles.put("header", style);

        return styles;
    }

    /**
     * 添加一行
     *
     * @return 行对象
     */
    public Row addRow() {
        return sheet.createRow(rownum++);
    }

    /**
     * 添加一个单元格
     *
     * @param row    添加的行
     * @param column 添加列号
     * @param val    添加值
     * @return 单元格对象
     */
    public Cell addCell(Row row, int column, Object val) {
        return this.addCell(row, column, val, 0, Class.class);
    }

    /**
     * 添加一个单元格
     *
     * @param row    添加的行
     * @param column 添加列号
     * @param val    添加值
     * @param align  对齐方式（1：靠左；2：居中；3：靠右）
     * @return 单元格对象
     */
    public Cell addCell(Row row, int column, Object val, int align, Class<?> fieldType) {
        Cell cell = row.createCell(column);
        String cellFormatString = "@";
        try {
            if (val == null) {
                cell.setCellValue("");
            } else if (fieldType != Class.class) {
                cell.setCellValue((String) fieldType.getMethod("setValue", Object.class).invoke(null, val));
            } else {
                if (val instanceof String) {
                    cell.setCellValue((String) val);
                } else if (val instanceof Integer) {
                    cell.setCellValue((Integer) val);
                    cellFormatString = "0";
                } else if (val instanceof Long) {
                    cell.setCellValue((Long) val);
                    cellFormatString = "0";
                } else if (val instanceof Double) {
                    cell.setCellValue((Double) val);
                    cellFormatString = "0.00";
                } else if (val instanceof Float) {
                    cell.setCellValue((Float) val);
                    cellFormatString = "0.00";
                } else if (val instanceof Date) {
                    cell.setCellValue((Date) val);
                    cellFormatString = "yyyy-MM-dd HH:mm";
                } else {
                    cell.setCellValue((String) Class
                            .forName(this.getClass().getName().replaceAll(this.getClass().getSimpleName(),
                                    "fieldtype." + val.getClass().getSimpleName() + "Type"))
                            .getMethod("setValue", Object.class).invoke(null, val));
                }
            }
            if (val != null) {
                CellStyle style = styles.get("data_column_" + column);
                if (style == null) {
                    style = wb.createCellStyle();
                    style.cloneStyleFrom(styles.get("data" + (align >= 1 && align <= 3 ? align : "")));
                    style.setDataFormat(wb.createDataFormat().getFormat(cellFormatString));
                    styles.put("data_column_" + column, style);
                }
                cell.setCellStyle(style);
            }
        } catch (Exception ex) {
            log.info("Set cell value [" + row.getRowNum() + "," + column + "] error: " + ex.toString());
            cell.setCellValue(val + "");
        }
        return cell;
    }

    /**
     * 添加数据（通过annotation.ExportField添加数据）
     *
     * @return list 数据列表
     */
    public <E> ExportExcel setDataList(List<E> list) {
        for (E e : list) {
            int colunm = 0;
            Row row = this.addRow();
            StringBuilder sb = new StringBuilder();
            for (Object[] os : annotationList) {
                ExcelField ef = (ExcelField) os[0];
                Object val = null;
                // Get entity value
                try {
                    if (StringUtils.isNotBlank(ef.value())) {
                        val = ReflectionUtils.invokeGetter(e, ef.value());
                    } else {
                        if (os[1] instanceof Field) {
                            val = ReflectionUtils.invokeGetter(e, ((Field) os[1]).getName());
                        } else if (os[1] instanceof Method) {
                            val = ReflectionUtils.invokeMethod(e, ((Method) os[1]).getName(), new Class[]{},
                                    new Object[]{});
                        }
                    }
                    // If is dict, get dict label
                    /*if (StringUtils.isNotBlank(ef.dictType())){
                    	val = DictUtils.getDictLabel(val==null?"":val.toString(), ef.dictType(), "");
                    }*/

                    if (ef.keys().length > 0) {
                        long[] keys = ef.keys();
                        long value = 0;
                        if (val instanceof String) {
                            value = Long.parseLong((String) val);
                        } else if (val instanceof Integer) {
                            Integer ix = (Integer) val;
                            value = ix.longValue();
                        } else {
                            value = (long) val;
                        }

                        for (int i = 0; i < keys.length; i++) {
                            if (value == keys[i]) {
                                val = ef.values()[i];
                                break;
                            }
                        }
                    }
                    if (ef.datePattern().length() > 0) {
                        Date date = new Date();
                        if (NumberUtils.isCreatable(val.toString())) {
                            long time = (long) val;
                            if (val.toString().length() < 13) {
                                time = time * 1000L;
                            }
                            date = new Date(time);
                        } else {
                            date = (Date) val;
                        }
                        SimpleDateFormat dateFormat = new SimpleDateFormat(ef.datePattern());
                        val = dateFormat.format(date);
                    }
                } catch (Exception ex) {
                    // Failure to ignore
                    // log.info(ex.toString());
                    val = "";
                }
                this.addCell(row, colunm++, val, ef.align(), ef.fieldType());
                sb.append(val + ", ");
            }
            // log.debug("Write success: ["+row.getRowNum()+"] "+sb.toString());
        }
        return this;
    }

    /**
     * 添加数据（通过annotation.ExportField添加数据），方便添加新的sheet页，isNewSheet = true 新加新sheet
     *
     * @return list 数据列表
     */
    public <E> ExportExcel setDataListForMoreSheet(String title, List<E> list, boolean isNewSheet,
                                                   List<ExcelHeader> headerList) {
        if (isNewSheet) {
            rownum = 0;
            initializeForMoreSheet(title, headerList, false);
        }
        for (E e : list) {
            int colunm = 0;
            Row row = this.addRow();
            StringBuilder sb = new StringBuilder();
            for (Object[] os : annotationList) {
                ExcelField ef = (ExcelField) os[0];
                Object val = null;
                // Get entity value
                try {
                    if (StringUtils.isNotBlank(ef.value())) {
                        val = ReflectionUtils.invokeGetter(e, ef.value());
                    } else {
                        if (os[1] instanceof Field) {
                            val = ReflectionUtils.invokeGetter(e, ((Field) os[1]).getName());
                        } else if (os[1] instanceof Method) {
                            val = ReflectionUtils.invokeMethod(e, ((Method) os[1]).getName(), new Class[]{},
                                    new Object[]{});
                        }
                    }
                    // If is dict, get dict label
                    /*if (StringUtils.isNotBlank(ef.dictType())){
                    	val = DictUtils.getDictLabel(val==null?"":val.toString(), ef.dictType(), "");
                    }*/

                    if (ef.keys().length > 0) {
                        long[] keys = ef.keys();
                        long value = 0;
                        if (val instanceof String) {
                            value = Long.parseLong((String) val);
                        } else if (val instanceof Integer) {
                            Integer ix = (Integer) val;
                            value = ix.longValue();
                        } else {
                            value = (long) val;
                        }

                        for (int i = 0; i < keys.length; i++) {
                            if (value == keys[i]) {
                                val = ef.values()[i];
                                break;
                            }
                        }
                    }
                    if (ef.datePattern().length() > 0) {
                        long time = (long) val;
                        if (val.toString().length() < 13) {
                            time = time * 1000L;
                        }
                        Date date = new Date(time);
                        SimpleDateFormat dateFormat = new SimpleDateFormat(ef.datePattern());
                        val = dateFormat.format(date);
                    }
                } catch (Exception ex) {
                    // Failure to ignore
                    // log.info(ex.toString());
                    val = "";
                }
                this.addCell(row, colunm++, val, ef.align(), ef.fieldType());
                sb.append(val + ", ");
            }
            log.debug("Write success: [" + row.getRowNum() + "] " + sb.toString());
        }
        return this;
    }

    /**
     * 输出数据流
     *
     * @param os 输出数据流
     */
    public ExportExcel write(OutputStream os) throws IOException {
        wb.write(os);
        return this;
    }

    /**
     * 输出到客户端
     *
     * @param fileName 输出文件名
     */
    public ExportExcel write(HttpServletResponse response, String fileName) throws IOException {
        response.reset();
        response.setContentType("application/octet-stream; charset=utf-8");
        response.setHeader("Content-Disposition", "attachment; filename=" + Encodes.urlEncode(fileName));
        write(response.getOutputStream());
        return this;
    }

    /**
     * 输出到文件
     *
     * @param name 输出文件名
     */
    public ExportExcel writeFile(String name) throws FileNotFoundException, IOException {
        FileOutputStream os = new FileOutputStream(name);
        this.write(os);
        return this;
    }

    /**
     * 清理临时文件
     */
    public ExportExcel dispose() {
        wb.dispose();
        return this;
    }

    /**
     * 导出测试
     */
    /*
     public static void main(String[] args) throws Throwable {

     List<String> headerList = new ArrayList<>();
     for (int i = 1; i <= 10; i++) {
     headerList.add("表头" + i);
     }

     List<String> dataRowList = new ArrayList<>();
     for (int i = 1; i <= headerList.size(); i++) {
     dataRowList.add("数据" + i);
     }

     List<List<String>> dataList = new ArrayList<>();
     for (int i = 1; i <= 1000000; i++) {
     dataList.add(dataRowList);
     }

     ExportExcel ee = new ExportExcel("表格标题", headerList);

     for (int i = 0; i < dataList.size(); i++) {
     Row row = ee.addRow();
     for (int j = 0; j < dataList.get(i).size(); j++) {
     ee.addCell(row, j, dataList.get(i).get(j));
     }
     }

     ee.writeFile("target/export.xlsx");

     ee.dispose();

     log.debug("Export success.");

     }*/

    /**
     * 下载多文件 打包文件可供下载 FIXME
     *
     * @param
     * @return
     */
    public static void downLoadZip(HttpServletResponse response, List<String> filePath, String fileName) {
        try {
            File zip = new File(fileName + ".zip");
            // if (!zip.exists()){
            // zip.createNewFile();
            // }
            // 创建zip文件输出流
            FileOutputStream fos = new FileOutputStream(zip);
            ZipOutputStream zos = new ZipOutputStream(fos);
            // 循环读取文件路径集合，获取每一个文件的路径
            for (String fp : filePath) {
                File f = new File(fp); // 根据文件路径创建文件
                zipFile(f, zos); // 将每一个文件写入zip文件包内，即进行打包
                f.delete();// 删除临时文件
            }
            zos.close();
            fos.close();
            response.reset();
            response.setContentType("application/octet-stream; charset=utf-8");
            response.setHeader("Content-Disposition", "attachment; filename=" + Encodes.urlEncode(fileName + ".zip"));
            // 创建页面返回方式为输出流，会自动弹出下载框
            OutputStream out = response.getOutputStream();
            // 将打包后的文件写到客户端，输出的方法同上，使用缓冲流输出
            FileInputStream fileInput = new FileInputStream(zip);
            InputStream fis = new BufferedInputStream(fileInput);
            try {
                byte[] buff = new byte[6144];
                int size = 0;
                while ((size = fis.read(buff)) != -1) {
                    out.write(buff, 0, size);
                }
                out.flush();
                out.close();
            } catch (Exception e) {
                log.error(ExceptionUtils.getStackTrace(e));
            }
            fis.close();
            fileInput.close();
            zip.delete();// 删除压缩包
        } catch (Exception e) {
            log.error(ExceptionUtils.getStackTrace(e));
        }
    }

    // 封装压缩文件的方法
    public static void zipFile(File inputFile, ZipOutputStream zipoutputStream) {
        try {
            if (inputFile.exists()) { // 判断文件是否存在
                if (inputFile.isFile()) { // 判断是否属于文件，还是文件夹
                    // 创建输入流读取文件
                    FileInputStream fis = new FileInputStream(inputFile);
                    BufferedInputStream bis = new BufferedInputStream(fis);
                    // 将文件写入zip内，即将文件进行打包
                    ZipEntry ze = new ZipEntry(inputFile.getName()); // 获取文件名
                    zipoutputStream.putNextEntry(ze);
                    // 写入文件的方法，同上
                    byte[] b = new byte[1024];
                    long l = 0;
                    while (l < inputFile.length()) {
                        int j = bis.read(b, 0, 1024);
                        l += j;
                        zipoutputStream.write(b, 0, j);
                    }
                    // 关闭输入输出流
                    fis.close();
                    bis.close();
                } else { // 如果是文件夹，则使用穷举的方法获取文件，写入zip
                    try {
                        File[] files = inputFile.listFiles();
                        if (files != null) {
                            for (int i = 0; i < files.length; i++) {
                                zipFile(files[i], zipoutputStream);
                            }
                        }
                    } catch (Exception e) {
                        log.error(ExceptionUtils.getStackTrace(e));
                    }
                }
            }
        } catch (Exception e) {
            log.error(ExceptionUtils.getStackTrace(e));
        }
    }

    private int compareSort(Object[] o1, Object[] o2) {
        Integer sort1 = Integer.valueOf(((ExcelField) o1[0]).sort());
        Integer sort2 = Integer.valueOf(((ExcelField) o2[0]).sort());
        return Integer.compare(sort1, sort2);
    }

}
